Sock



FIG. 1 is a front perspective view of a sock showing my new design in an in-use configuration;

FIG. 2 is a bottom rear perspective view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a second side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a top view thereof, and,

FIG. 8 is a bottom view thereof.

The broken lines showing the remainder of the sock are for the purpose of illustrating portions of the article that form no part of the claim. 

CLAIM The ornamental design for a sock, as shown and described. 